








RU42UU Crossed Roller Slewing Ring Turntable Bearing 20x70x12mm
UPC: 00193019005569
30-45 days delivery
RU42UU Crossed Roller Bearing - Compact & High Precision
✔️ 20mm x 70mm x 12mm - All-Direction Load Support - VXB Brand
The RU42UU is a high-precision crossed roller bearing that uses cylindrical rollers arranged at right angles to each other, allowing it to handle radial, axial, and moment loads simultaneously. Perfect for robotics, indexing tables, and compact rotating mechanisms, this bearing offers rigidity, preload adjustability, and smooth rotational accuracy in a small footprint.
✅ Size: 20mm ID x 70mm OD x 12mm width
✅ Bearing type: Crossed roller
✅ Closure: Open
✅ Brand: VXB
✅ Construction: Separable inner and outer rings for easy installation and preload adjustment
✅ Dynamic load rating: 7350 N
✅ Static load rating: 8350 N
✅ Highly rigid and accurate rotary motion
Mounting and Technical Details (mm):
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Roller pitch circle diameter (dp): 42 mm
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PCD1: 28 mm - 6x M3 through holes
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PCD2: 57 mm - 6x Ø3.4mm holes with Ø6.5mm counterbore (depth: 3.3mm)
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Grease port hole: 3.1 mm
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Other specs: d₁ = 0.6mm, ds = 37mm, Dh = 47mm
💡 Why choose a crossed roller bearing like the RU42UU?
It delivers high stiffness and precision in a single compact unit that replaces the need for multiple bearing sets.
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Supports complex motion systems in all load directions
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Great for robotics arms, machine tools, and precision stages
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Preload adjustability allows tighter motion control
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Compact and efficient - ideal for tight mechanical spaces
Need compact strength and multi-axis stability? Add the RU42UU to your setup and enjoy unmatched precision in every direction!